A correlation coefficient of zero can be obtained even when there is actually a meaningful relationship between two variables (e.g.,data is collected when there is only slight variation in one of the variables).

Question

Quizplus · Accepted Answer

A correlation coefficient of zero indicates no linear relationship between two variables, but a meaningful relationship could exist in a non-linear form, or the data might not vary enough to detect the relationship.

A Correlation Coefficient of Zero Can Be Obtained Even When